UVa/12318 - Digital Roulette/12318.cpp

   1 // Equipo Poncho, Carriel y Ruana
   2 // Accepted on UVa
   3 using namespace std;
   4 #include <algorithm>
   5 #include <iostream>
   6 #include <iterator>
   7 #include <sstream>
   8 #include <fstream>
   9 #include <cassert>
  10 #include <climits>
  11 #include <cstdlib>
  12 #include <cstring>
  13 #include <string>
  14 #include <cstdio>
  15 #include <vector>
  16 #include <cmath>
  17 #include <queue>
  18 #include <stack>
  19 #include <list>
  20 #include <map>
  21 #include <set>
  22
  23 template <class T> string toStr(const T &x)
  24 { stringstream s; s << x; return s.str(); }
  25 template <class T> int toInt(const T &x)
  26 { stringstream s; s << x; int r; s >> r; return r; }
  27
  28 #define For(i, a, b) for (int i=(a); i<(b); ++i)
  29 #define foreach(x, v) for (typeof (v).begin() x = (v).begin(); x != (v).end(); ++x)
  30 #define D(x) cout << #x " = " << (x) << endl;
  31
  32 const double EPS = 1e-9;
  33
  34 int cmp(double x, double y = 0, double tol = EPS) {
  35     return (x <= y + tol) ? (x + tol < y) ? -1 : 0 : 1;
  36 }
  37
  38 int main(){
  39     int n, m;
  40     while (cin >> n >> m) {
  41         if (n == 0 and m == 0) break;
  42         int k; cin >> k;
  43         vector<long long> grad(k + 1);
  44         for (int i = 0; i < k + 1; ++i) {
  45             cin >> grad[i];
  46         }
  47         long long mod = n + 1;
  48         //assert(grad.size() == k + 1);
  49         set<long long> ans;
  50         for (long long x = 0; x <= m; x++){
  51             long long y = 0;
  52             long long d = 1;
  53             for (int i = 0; i < grad.size(); ++i) {
  54                 //printf("   y = y + %d\n", grad[i] * d);
  55                 y += ((grad[i] % mod) * d) % mod;
  56                 y %= mod;
  57                 d = (d * (x % mod)) % mod;
  58             }
  59             ans.insert(y % mod);
  60             //printf("added %d\n", y % mod);
  61         }
  62         cout << ans.size() << endl;
  63     }
  64     return 0;
  65
  66 }